Cadillac CTS III Tire Sizes and Rim Dimensions by Year and Trim
The Cadillac CTS III, produced between 2014 and 2019, features various tire sizes and rim dimensions across its trims. Common tire sizes range from 235/50R18 to 275/35R19, with rim widths typically between 7.5 and 9 inches.\n\nBase trims often use 18-inch rims with a 7.5-inch width, while premium trims and sportier variants may sport wider 19-inch rims up to 9 inches to accommodate performance tires. These variations affect handling and ride comfort.\n\nWhen comparing trims, note that tire sidewall height and rim diameter influence clearance and overall gearing. Matching tire sizes exactly is critical when replacing tires or upgrading wheels to maintain vehicle safety and performance.\n\nAlways consult official specifications or a tire professional before selecting tires, ensuring fitment aligns with your Cadillac CTS III's model year and trim to maintain optimal driving dynamics.
| Make / model / trim | Year | Tire size | Wheel |
|---|---|---|---|
| Cadillac CTS III 2.0 Turbo | 2019 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo AWD | 2019 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo | 2018 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo AWD | 2018 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo | 2017 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo AWD | 2017 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo | 2016 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo AWD | 2016 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo | 2015 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo AWD | 2015 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo | 2014 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo AWD | 2014 | 215/55R16 | 7" × 16" |
| Cadillac CTS III 2.0 Turbo | 2013 | 215/55R16 | 7" × 16" |
For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for Cadillac CTS III.
FAQ
- What tire sizes are common on the Cadillac CTS III?
- Common tire sizes include 235/50R18 and 275/35R19, varying by year and trim.
- Can I use different rim widths on various CTS III trims?
- Yes, rim widths vary from 7.5 to 9 inches depending on the trim and performance requirements.
- Why is it important to match tire sizes when upgrading CTS III wheels?
- Matching tire sizes ensures proper vehicle handling, safety, and maintains accurate speedometer readings.
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |






Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |
